WBGT

Heat Illness Prevention Guidelines

Category 4 (RED Flag)

WBGT range: 88.0-89.9 degrees F

 

Recommended work/rest cycle (minutes)
and water intake (qts/hour)

 

Acclimatized airmen wearing ABUs:

  • Light work: No limits, 0.75 qts/hr
  • Moderate work: 30/30, 0.75 qts/hr
  • Heavy work: 20/40, 1.0 qts/hr

Unacclimatized airmen wearing ABUs:

  • Light work: 50/10, 0.75 qts/hr
  • Moderate work: 20/40, 0.75 qts/hr
  • Heavy work:10/50, 1.0 qts/hr